Istratrix of said ernst f



(No Model.)

E. P. AUTENRIETH, Decd.

2 Sheets-Sheet I 1.

M. AUTENRIETH, Administratrix. ROTARYGUTTING AND GOMMINUTING MAGH INE.

No; 577,278. Patented Feb. 16, 1897.

fl\\\\\\\\ V IIVVEIVTOH Tnz mums PETERS co'lmofo-umou WASHINGTON, n, c.

ATTORNEY.

(No'ModeL) 2 SheetsSheet 2. E. P. AUTENRIETH; Decd.

M. AUTENRIETH,- Administratrix. ROTARY CUTTING AND GOMMINUTING MACHINE.

No. 577.278. 0 I Patented Feb. 16,1897;

Rfi\\\\\\\\\\\\\\\\\\\\\\\\\\\\ n imm M,

WITNESSES. v lNVENTOH,

ATTORNEY,

UNITED STATES PATENT OFFICE.

ERNST F. AUTENRIETH, OF NEWV YORK, N. Y.; MARIE AUTENRIETH ADMIN-ISTRATRIX OF SAID ERNST F. AUTENRIETH, DECEASED.

ROTARY CUTTING AND COMMINUTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 577,278, dated February16, 1897.

Application filed March 20, 1896. Serial No. 584,165. (No model.)

To all whom it may concern.-

Be it known that I, ERNST F. AUTENRIETH, of New York city, in the countyand State of New York, have invented a certain new and usefulImprovement in Rotary Cutting and Comminuting Machines, of which thefollowing is a full, clear, and exact description, reference being madeto the accompanying drawings, forming part of this specification.

This invention relates to improvements in machines by means of whichcork, spices, and various other substances are reduced to fineparticles, and which comprise a shaft mounted in horizontal hearings ona standard, knives secured on and adapted to be rotated by the shaft, astationary casing in which the rotary knives are inclosed, other knivesfixed in the casing and soarranged that the rotary knives coaottherewith, and a screen constituting the lower side of the casing; andthe invention consists of a machine comprising the particular groups ofparts herein described and claimed.

On the accompanying sheets of drawings, Figure 1 is a half verticalsection and half side elevation of the machine; Fig. 2, a verticalsection at right angles to the shaft; Fig. 3, a detail of one of thefixed knives and means of fastening it in the casing, and Fig. 4 a planof the frame of the machine on a smaller scale than that of the otherfigures.

Similar reference-numerals designate like partsin the different views.

The object of this invention is to so improve the construction of thecasing of these machines that the entire upper part of the casing orthat above the shaft may be conveniently separated from the lower partin such a way as to afford access to the knives and all parts of theinterior of the casing and to-allow the rotary knives and shaft to beremoved separately or together from the casing.

The standard of the machine consists of the two upright castings 1, onwhich is bolted the top 2. The main part of the top is fiat, a planthereof being shown in Fig. 4 and an edge view and cross-section inFigs. 1 and 2, respectively. In the top is a large oblong opening 20,and at each end of the top is a bearing 21, in which the shaft 3 isjournaled. At the ends of the opening 20 in the top are sections22,which extend downward from the main part of the top and whose lateraland under surfaces lie nearly in the surface of a cylinder Whose axiscoincides with that of the shaft 3. On the back part of the top are lugs23, which project beyond the rear edge of the top.

Several cutter-heads 30, for example, four, are keyed on the shaft 3,and to these cutterheads knives 4 are secured by bolts 40, each knifebeing fastened to all of the cutter-heads and extending from one end ofthe casing to the other.

The casing consists of the upper part 5 and the lower part comprisingthe sections 22 on the top 2 and the screen 50; The upper part 5 of thecasing is composed of the end pieces 51 and two castings 52, to whichthe end pieces are bolted by bolts 53. The rear casting 52 is providedwith lugs 54, by means of which the upper part of the casing is hingedby a rod 55 to the lugs 23 on the top 2. In the thick parts 56 of thecastings 52 are fitted knives 57, which extend beyond the inner surfacesof the castings and which the knives 4 just clear when the shaft3revolves. These knives are adjustable by means of bolts 58 and 59,secured in and bearing'upon the knives and extending therefrom beyondthe outer surface of the casing, as is particularly shown in Fig. 3. Theend pieces 51 and the sections 22 on the top 2 constitute the ends orheads of the casing.

In holes 24 in the front of the top 2 are bolts 25, which extend throughthe top into the front casting 52 of the casing, and these bolts and thehinge formed by the lugs 23 and 54 and the rod 55 hold the upper part ofthe casing in its proper position on the lower part.

The screen 50 is fastened near each end tothe bottom of one of thesections 22 bya bolt 26, and is held in contact with the sections onopposite sides of the bolts 26 bybolts 27 inserted in the top 2 andabutting at their inner ends against the outer surface of the screen.

A hopper 6 is mounted on the casing, being held between flanges 60 onthe end pieces 51.

Motion is imparted to the shaft 3 by means of a pulley 31 on one end ofthe shaft. The

substances that are to be cut fine are poured into the hopper (5 andpass down into the interior of the casing, where they are reduced tosmall particles by the knives 4t and 57, and then are sifted through thescreen 50 into a receptacle placed under the casing.

\Vhenever it is desired to remove any of the knives or the shaft or toreach any part of the interior of the casing, the bolts are unscrewedand the whole of the upper part of the casing is raised and turnedbackward on the hinge. Access is then afforded to the rotary andstationary knives and to the interior of both the upper and lower partof the casing, and the shaft, with the cutterheads and rotary knivesupon it, may be lifted out of its bearings.

Having thus described my invention, what I claim, and desire to secureby Letters Patcut, is

l. A rotary cutting and coinminuting machine comprisinga stand ard,thetop 21nounted thereon and having the opening 20, sections-22, lugs 23and bearings 21, a screen 50 on the sections 22, bolts 26 passingthrough the screen into the sections 22, bolts 27 in the top abutting attheir inner ends against the screen, the sections 22 and screen 50constituting the lower part of the casing, and the upper part of thecasing separable from the lower part and hinged to the lugs 23 on thetop 2, substantially as described.

2. A rotary cutting and coinminuting machine comprising: the uprights 1of the standard; the top 2 supported near each end by one of theuprights, the top consisting of the main portion in which is the opening20 and of sections 22 extending downward between the uprights at theends of the opening 20, and the top being provided with shaft-bearingsbetween its ends and those of the opening; and a screen 50 secured tothe curved edges of the sections 22; in combination with the upper partof the casing, hinged to the lower part and comprising the ends 51,adapted to rest on the sections 22 of the top, and castings 52, boltedto the ends 51 and containing knives 57; the shaft 3 with cutter-heads30 secured thereon; and knives 4 secured to the cutter-headssubstantially as described.

ERNST F. AUTENRIETII.

In presence of- WM. WV. SHAW, ARTHUR F. THOMPSON.

